/*
 * Tabs & Chords — Studio design system
 *
 * This file is intentionally loaded after component styles. It is the single
 * visual contract for spacing, colour, depth, interaction and responsive
 * composition while legacy modules are progressively consolidated.
 */

:root {
  --studio-brand-50: #eefaf7;
  --studio-brand-100: #d8f3ed;
  --studio-brand-500: #138a78;
  --studio-brand-600: #0f766e;
  --studio-brand-700: #0b5f59;
  --studio-ink: #17302e;
  --studio-muted: #617571;
  --studio-paper: #f5f8f7;
  --studio-surface: #ffffff;
  --studio-line: rgba(23, 48, 46, .11);
  --studio-shadow-1: 0 1px 2px rgba(13, 38, 35, .05), 0 8px 24px rgba(13, 38, 35, .06);
  --studio-shadow-2: 0 18px 48px rgba(13, 38, 35, .12);
  --studio-radius-sm: 10px;
  --studio-radius-md: 16px;
  --studio-radius-lg: 24px;
  --studio-radius-xl: 28px;
  --studio-space-1: 4px;
  --studio-space-2: 8px;
  --studio-space-3: 12px;
  --studio-space-4: 16px;
  --studio-space-6: 24px;
  --studio-space-8: 32px;
  --studio-control: 44px;
  --studio-content: 1240px;
  --studio-reading: 860px;
  --studio-ease: cubic-bezier(.22, 1, .36, 1);
  --studio-duration: 220ms;
}

body.theme-ivory {
  --bg-app: #f3f7f6;
  --bg-viewport: #f3f7f6;
  --bg-surface: #ffffff;
  --bg-surface-solid: #ffffff;
  --bg-surface-raised: #f7faf9;
  --bg-surface-hover: #eaf4f1;
  --bg-card-subtle: #f7faf9;
  --accent-primary: var(--studio-brand-600);
  --accent-primary-hover: var(--studio-brand-700);
  --accent-primary-glow: rgba(19, 138, 120, .18);
  --accent-secondary: #d4774f;
  --accent-secondary-glow: rgba(212, 119, 79, .18);
  --text-primary: var(--studio-ink);
  --text-secondary: #49645f;
  --text-muted: #5b736e;
  --border-subtle: var(--studio-line);
  --border-strong: rgba(23, 48, 46, .2);
  --focus-ring: rgba(19, 138, 120, .24);
}

body.theme-charcoal {
  --bg-app: #0d1717;
  --bg-viewport: #0d1717;
  --bg-surface: #142323;
  --bg-surface-solid: #142323;
  --bg-surface-raised: #1b3030;
  --bg-surface-hover: #234040;
  --bg-card-subtle: #172a2a;
  --accent-primary: #73d8bd;
  --accent-primary-hover: #99ead4;
  --accent-primary-glow: rgba(115, 216, 189, .2);
  --accent-secondary: #f3b18e;
  --accent-secondary-glow: rgba(243, 177, 142, .2);
  --text-primary: #f4fbf9;
  --text-secondary: #bdd0cc;
  --text-muted: #93aaa5;
  --border-subtle: rgba(220, 255, 248, .11);
  --border-strong: rgba(220, 255, 248, .21);
  --focus-ring: rgba(115, 216, 189, .32);
}

body.theme-amber {
  --bg-app: #17110c;
  --bg-viewport: #17110c;
  --bg-surface: #211811;
  --bg-surface-solid: #211811;
  --bg-surface-raised: #2c2117;
  --bg-surface-hover: #3a2b1e;
  --bg-card-subtle: #261c14;
  --accent-primary: #f2a34d;
  --accent-primary-hover: #ffc06e;
  --accent-primary-glow: rgba(242, 163, 77, .2);
  --accent-secondary: #f7d074;
  --accent-secondary-glow: rgba(247, 208, 116, .2);
  --text-primary: #fff8e9;
  --text-secondary: #dbcbb8;
  --text-muted: #bba896;
  --border-subtle: rgba(255, 224, 175, .13);
  --border-strong: rgba(255, 224, 175, .23);
  --focus-ring: rgba(247, 208, 116, .28);
}

html {
  background: var(--bg-app);
  color-scheme: light;
}

body.theme-charcoal,
body.theme-amber { color-scheme: dark; }

body,
button,
input,
select,
textarea {
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body {
  --studio-text: var(--text-primary);
  --studio-text-muted: var(--text-secondary);
  --studio-surface: var(--bg-surface-solid);
  --studio-surface-raised: var(--bg-surface-raised);
  --studio-surface-soft: var(--bg-card-subtle);
  --studio-surface-hover: var(--bg-surface-hover);
  --studio-border: var(--border-subtle);
  --studio-border-strong: var(--border-strong);
  --studio-accent: var(--accent-primary);
  --studio-accent-soft: var(--bg-surface-hover);
  --studio-accent-strong: var(--accent-primary);
  --studio-success: #237653;
  --studio-danger: #b32f3f;
  --studio-on-accent: #ffffff;
  background:
    radial-gradient(circle at 12% -10%, var(--accent-primary-glow), transparent 32rem),
    var(--bg-app);
}

body.theme-charcoal, body.theme-amber {
  --studio-on-accent: #102321;
  --studio-success: #81d4a4;
  --studio-danger: #ff9eaa;
}

[hidden] { display: none !important; }

button,
input,
select,
textarea {
  -webkit-tap-highlight-color: transparent;
}

button,
.song-card,
.premium-list-item,
.tool-card,
.nav-tab-btn,
.btn-settings-action,
.discovery-filter-button,
.discovery-load-more {
  transition: transform var(--studio-duration) var(--studio-ease),
    border-color var(--studio-duration) ease,
    background-color var(--studio-duration) ease,
    box-shadow var(--studio-duration) ease,
    color var(--studio-duration) ease,
    opacity var(--studio-duration) ease;
}

button:hover:not(:disabled),
.song-card:hover,
.premium-list-item:hover,
.tool-card:hover {
  transform: translateY(-2px);
}

button:active:not(:disabled),
.song-card:active,
.premium-list-item:active,
.tool-card:active {
  transform: translateY(0) scale(.985);
}

*:focus-visible {
  outline: 3px solid var(--accent-primary) !important;
  outline-offset: 3px !important;
  box-shadow: 0 0 0 5px var(--focus-ring) !important;
}

.app-root {
  min-height: 100dvh;
  background: transparent;
}

.main-workspace,
.view-container,
.score-viewport {
  background: transparent;
}

.view-container {
  scrollbar-gutter: stable;
}

/* Shared page rhythm */
.explore-view,
.tools-view-wrapper,
.settings-view-wrapper {
  width: min(calc(100% - 32px), var(--studio-content));
  margin-inline: auto;
}

.explore-view,
.tools-view-wrapper,
.settings-view-wrapper {
  padding-top: clamp(20px, 4vw, 48px);
  padding-bottom: 144px;
}

/* Bottom navigation: quiet, tactile and safe-area aware. */
.bottom-nav-bar,
.bottom-player-bar {
  height: 70px;
  padding-bottom: env(safe-area-inset-bottom);
  background: color-mix(in srgb, var(--bg-surface-solid) 92%, transparent);
  border-top: 1px solid var(--border-subtle);
  box-shadow: 0 -12px 32px rgba(8, 32, 29, .08);
  backdrop-filter: blur(18px) saturate(140%);
}

.nav-tab-btn {
  min-width: 72px;
  color: var(--text-muted);
  font-size: .74rem;
  letter-spacing: .01em;
}

.nav-tab-btn .nav-icon { font-size: 1.2rem; }

.nav-tab-btn.active {
  color: var(--accent-primary);
}

.nav-tab-btn.active::before {
  content: "";
  position: absolute;
  top: 8px;
  width: 28px;
  height: 3px;
  border-radius: 99px;
  background: currentColor;
}

/* Explore */
.discovery-header {
  width: min(100%, 960px);
  margin-inline: auto;
  padding: clamp(20px, 4vw, 40px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--studio-radius-lg);
  background: color-mix(in srgb, var(--bg-surface-solid) 92%, transparent);
  box-shadow: var(--studio-shadow-1);
  text-align: left;
}

.discovery-brand-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
}

.workspace-eyebrow,
.view-header-badge {
  color: var(--accent-primary);
  font-size: .7rem;
  font-weight: 850;
  letter-spacing: .13em;
}

.explore-hero-title {
  margin-top: 8px;
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: .98;
  letter-spacing: -.055em;
  font-weight: 850;
}

.explore-hero-title span { color: var(--accent-secondary); }

.catalog-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
  padding: 8px 11px;
  border: 1px solid var(--border-subtle);
  border-radius: 999px;
  color: var(--text-secondary);
  background: var(--bg-card-subtle);
  font-size: .74rem;
  font-weight: 700;
}

.discovery-search-row {
  margin-top: 28px;
  align-items: stretch;
}

.explore-search-input {
  min-height: 58px;
  border: 1px solid var(--border-strong);
  border-radius: 17px;
  background: var(--bg-surface-solid);
  box-shadow: 0 8px 20px rgba(10, 45, 41, .06);
  font-size: 1rem;
}

.explore-search-input:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 4px var(--focus-ring), var(--studio-shadow-1);
}

.btn-genre-filter-toggle {
  border-radius: 14px !important;
  border: 1px solid var(--border-strong) !important;
  background: var(--bg-surface-solid) !important;
  color: var(--text-primary) !important;
  font-weight: 750 !important;
}

.explore-search-filters-inline {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.explore-search-filters-inline .explore-mode-chip-bar {
  margin-top: 0 !important;
  display: inline-flex;
  background: var(--bg-surface-solid);
  padding: 3px;
  border-radius: var(--studio-radius-sm);
  border: 1px solid var(--border-strong);
}

.explore-search-filters-inline .explore-mode-chip {
  min-height: 38px;
  padding: 6px 14px;
  border-radius: var(--studio-radius-sm);
  font-size: 0.85rem;
  border: 0;
  background: transparent;
  color: var(--text-secondary);
  box-shadow: none;
}

.explore-search-filters-inline .explore-mode-chip.active {
  background: var(--accent-primary);
  color: var(--studio-on-accent);
}

.explore-mode-chip-bar {
  justify-content: flex-start;
  margin-top: 0;
}

.explore-mode-chip {
  min-height: 38px;
  padding-inline: 16px;
  border: 1px solid var(--border-subtle);
  border-radius: 999px;
  background: var(--bg-card-subtle);
  color: var(--text-secondary);
  font-weight: 750;
}

.explore-mode-chip.active {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: #fff;
  box-shadow: 0 5px 14px var(--accent-primary-glow);
}

.explore-secondary-bars {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 14px auto;
  width: min(100%, var(--studio-content));
}

.explore-secondary-bars > details {
  flex: 1 1 300px;
  margin: 0 !important;
}

.explore-songs-section {
  width: min(100%, var(--studio-content));
  margin: 16px auto 0;
}

.practice-hub {
  width: min(100%, 960px);
  margin: 24px auto 0;
  padding: 20px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--studio-radius-md);
  background: color-mix(in srgb, var(--bg-surface-solid) 90%, transparent);
  box-shadow: var(--studio-shadow-1);
}

.practice-hub-empty {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent-primary) 9%, var(--bg-surface-solid)), var(--bg-surface-solid));
}

.practice-hub-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}

.practice-hub-kicker,
.practice-song-index {
  color: var(--accent-primary);
  font-size: .65rem;
  font-weight: 850;
  letter-spacing: .12em;
}

.practice-hub h2 {
  margin: 4px 0 0;
  color: var(--text-primary);
  font-size: 1.15rem;
  letter-spacing: -.025em;
}

.practice-hub p {
  max-width: 56ch;
  margin: 8px 0 0;
  color: var(--text-secondary);
  line-height: 1.5;
}

.practice-hub-save {
  color: var(--text-muted);
  font-size: .72rem;
  font-weight: 700;
  white-space: nowrap;
}

.practice-hub-steps {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.practice-hub-steps span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 11px;
  border: 1px solid var(--border-subtle);
  border-radius: 999px;
  color: var(--text-secondary);
  font-size: .78rem;
  font-weight: 700;
}

.practice-hub-steps b {
  display: grid;
  width: 20px;
  height: 20px;
  place-items: center;
  border-radius: 50%;
  background: var(--accent-primary);
  color: white;
  font-size: .7rem;
}

.practice-hub-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.practice-song-card {
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  padding: 14px;
  border: 1px solid var(--border-subtle);
  border-radius: 13px;
  background: var(--bg-card-subtle);
  color: var(--text-primary);
  text-align: left;
  cursor: pointer;
}

.practice-song-card strong,
.practice-song-card > span:last-child {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.practice-song-card strong { max-width: 100%; font-size: .9rem; }
.practice-song-card > span:last-child { max-width: 100%; color: var(--text-muted); font-size: .75rem; }
.practice-song-card:hover { border-color: var(--accent-primary); background: var(--bg-surface-solid); }

.explore-trending-accordion { margin: 18px 0 24px; border: 1px solid var(--border-subtle); border-radius: var(--studio-radius-md); background: color-mix(in srgb, var(--bg-surface-solid) 86%, var(--accent-primary)); overflow: hidden; }
.explore-trending-accordion summary { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 15px 18px; cursor: pointer; list-style: none; }
.explore-trending-accordion summary::-webkit-details-marker { display: none; }
.explore-trending-accordion summary::after { content: '⌄'; color: var(--accent-primary); font-size: 1.1rem; transition: transform var(--studio-duration) var(--studio-ease); }
.explore-trending-accordion[open] summary::after { transform: rotate(180deg); }
.trending-kicker { display: block; margin-bottom: 4px; color: var(--accent-primary); font-size: .64rem; font-weight: 900; letter-spacing: .14em; }
.trending-summary-hint { color: var(--text-muted); font-size: .76rem; }
.explore-trending-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; padding: 0 12px 12px; }
.trending-song-btn { display: flex; align-items: center; gap: 10px; min-width: 0; padding: 11px; border: 1px solid var(--border-subtle); border-radius: 12px; background: var(--bg-surface-raised); color: var(--text-primary); text-align: left; cursor: pointer; transition: transform var(--studio-duration) var(--studio-ease), border-color var(--studio-duration) var(--studio-ease); }
.trending-song-btn:hover { transform: translateY(-2px); border-color: var(--accent-primary); }
.trending-song-btn strong, .trending-song-btn small { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.trending-song-btn strong { font-size: .82rem; }
.trending-song-btn small { margin-top: 3px; color: var(--text-muted); font-size: .72rem; }
.trending-song-index { color: var(--accent-primary); font: 800 .7rem/1 var(--studio-font-mono, ui-monospace); }
.trending-empty { grid-column: 1/-1; margin: 0; padding: 12px 6px; color: var(--text-muted); font-size: .82rem; }

.discovery-results-heading .section-title {
  color: var(--text-primary);
  font-size: .86rem;
  font-weight: 800;
  letter-spacing: .01em;
}

.song-card,
.discovery-song-card {
  border-radius: var(--studio-radius-md) !important;
  border-color: var(--border-subtle) !important;
  background: var(--bg-surface-solid) !important;
  box-shadow: 0 1px 2px rgba(8, 36, 32, .04);
}

.song-card:hover,
.discovery-song-card:hover {
  border-color: color-mix(in srgb, var(--accent-primary) 55%, var(--border-subtle)) !important;
  box-shadow: var(--studio-shadow-1);
}

.song-card-title { letter-spacing: -.015em; }

/* Tool catalogue: fewer visual layers, more rhythm. */
.tools-view-wrapper { max-width: var(--studio-content); }

.tools-view-wrapper .view-header {
  margin-bottom: clamp(28px, 5vw, 52px);
}

.tools-view-wrapper .view-header h1 {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  letter-spacing: -.05em;
  line-height: 1;
}

.tools-command-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: -22px 0 32px;
}

.tools-search-field {
  display: flex;
  align-items: center;
  gap: 9px;
  width: min(100%, 520px);
  min-height: 48px;
  padding: 0 14px;
  border: 1px solid var(--border-strong);
  border-radius: 14px;
  background: var(--bg-surface-solid);
  color: var(--text-muted);
  box-shadow: 0 4px 14px rgba(8, 36, 32, .04);
}

.tools-search-field input {
  width: 100%;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text-primary);
}

.tools-search-summary {
  color: var(--text-muted);
  font-size: .76rem;
  font-weight: 700;
}

.tools-category-group {
  margin-bottom: 40px;
}

.tools-category-header {
  margin-bottom: 16px;
  padding: 0 0 14px;
  border-bottom: 1px solid var(--border-subtle);
}

.tools-category-title { font-size: 1.1rem; letter-spacing: -.02em; }
.tools-category-desc { color: var(--text-muted); max-width: 62ch; }

.tools-premium-list {
  display: grid !important;
  grid-template-columns: 1fr !important;
  gap: 12px !important;
}

.premium-list-item {
  min-height: 92px !important;
  padding: 14px 16px !important;
  border-radius: var(--studio-radius-md) !important;
  box-shadow: none;
}

.premium-list-item:hover {
  box-shadow: var(--studio-shadow-1);
  border-color: var(--accent-primary) !important;
}

.premium-icon {
  width: 44px !important;
  height: 44px !important;
  min-width: 44px !important;
  border-radius: 13px !important;
  margin-right: 14px !important;
  box-shadow: none !important;
}

.premium-content h3 { font-size: .96rem !important; }
.premium-content p { color: var(--text-muted) !important; }

.tool-preview-action {
  align-self: flex-start;
  margin-top: 10px;
  min-height: 34px;
  padding: 7px 11px;
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  background: color-mix(in srgb, var(--accent-primary) 8%, transparent);
  color: var(--accent-primary);
  font-size: .74rem;
  font-weight: 800;
  letter-spacing: .01em;
  cursor: pointer;
  transition: background var(--studio-duration) var(--studio-ease), transform var(--studio-duration) var(--studio-ease), border-color var(--studio-duration) var(--studio-ease);
}

.tool-preview-action:hover {
  background: color-mix(in srgb, var(--accent-primary) 16%, transparent);
  border-color: var(--accent-primary);
  transform: translateY(-1px);
}

.tool-preview-action:focus-visible { outline: 3px solid color-mix(in srgb, var(--accent-primary) 30%, transparent); outline-offset: 2px; }

/* Karaoke: source selection is a compact control, while the practice transport remains primary. */
.karaoke-video-block { margin: 0 0 16px; overflow: hidden; border: 1px solid var(--border-subtle); border-radius: var(--studio-radius-md); background: var(--bg-surface-raised); }
.karaoke-video-block iframe { display: block; width: 100%; max-height: min(34vw, 220px); border: 0; }
.karaoke-track-switch { display: flex; gap: 6px; padding: 10px; border-bottom: 1px solid var(--border-subtle); }
.karaoke-track-switch button { flex: 1; min-height: 36px; border: 1px solid var(--border-subtle); border-radius: 10px; background: transparent; color: var(--text-secondary); font-weight: 800; cursor: pointer; }
.karaoke-track-switch button.active { background: var(--accent-primary); border-color: var(--accent-primary); color: #fff; }
.karaoke-track-switch button:disabled { opacity: .45; cursor: not-allowed; }
.karaoke-mixer { align-items: end; }
.karaoke-mixer label { color: var(--text-secondary); font-size: .78rem; font-weight: 750; }
.karaoke-mixer input[type="number"] { width: 100%; min-height: 38px; margin-top: 6px; padding: 8px 10px; border: 1px solid var(--border-subtle); border-radius: 10px; background: var(--bg-surface-raised); color: var(--text-primary); }

.generated-guide-notice {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 0 0 18px;
  padding: 12px 14px;
  border: 1px solid color-mix(in srgb, var(--accent-primary) 28%, var(--border-subtle));
  border-radius: 13px;
  background: color-mix(in srgb, var(--accent-primary) 7%, transparent);
  color: var(--text-secondary);
  font-size: .8rem;
  line-height: 1.45;
}
.generated-guide-notice strong,
.generated-guide-notice span { display: block; }
.generated-guide-notice strong { color: var(--text-primary); font-size: .82rem; }
.generated-guide-icon { color: var(--accent-primary); font-size: 1rem; font-weight: 900; }
.lyrics-empty-state { display: grid; gap: 6px; place-items: center; min-height: 180px; padding: 28px; text-align: center; color: var(--text-muted); }
.lyrics-empty-state strong { color: var(--text-primary); font-size: 1rem; }

#lyricsToolsBottomSheetOverlay .bottom-sheet-content {
  width: min(100%, 600px);
  max-height: min(80dvh, 760px);
  padding: 24px;
  padding-bottom: max(32px, env(safe-area-inset-bottom)) !important;
  overflow-y: auto;
  background: var(--bg-surface-solid);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  border-radius: 24px 24px 0 0;
  box-shadow: var(--studio-shadow-2);
  scrollbar-width: thin;
}

#lyricsToolsBottomSheetOverlay #btnCloseToolsSheet { min-width: 44px; min-height: 44px; }
#lyricsToolsBottomSheetOverlay .btn-guider-choice.active { color: var(--studio-on-accent) !important; }
.song-advanced-options { margin-bottom: 20px; border-block: 1px solid var(--border-subtle); }
.song-advanced-options summary { padding: 16px 4px; cursor: pointer; font-size: .9rem; font-weight: 650; }
.song-advanced-options summary span { display: block; padding-top: 4px; color: var(--text-secondary); font-size: .78rem; font-weight: 400; }
.song-advanced-options[open] summary { margin-bottom: 8px; }
.song-advanced-options .btn-menu-action { background: transparent !important; border-color: transparent !important; }
.song-advanced-options .btn-menu-action:hover { background: var(--bg-surface-raised) !important; }

@media (min-width: 681px) {
  #lyricsToolsBottomSheetOverlay { align-items: center !important; padding: 24px; }
  #lyricsToolsBottomSheetOverlay .bottom-sheet-content { border-radius: 24px; }
}

#lyricsToolsBottomSheetOverlay .btn-menu-action {
  min-height: 44px;
  border-radius: 11px !important;
  transition: background var(--studio-duration) var(--studio-ease), transform var(--studio-duration) var(--studio-ease) !important;
}

#lyricsToolsBottomSheetOverlay .btn-menu-action:hover,
#lyricsToolsBottomSheetOverlay .btn-menu-action:focus-visible { transform: translateX(2px); }

.shortcuts-guide-overlay { position: fixed; inset: 0; z-index: 10020; display: grid; place-items: center; padding: 20px; background: rgba(15, 18, 24, .64); backdrop-filter: blur(12px); }
.shortcuts-guide-card { width: min(100%, 560px); padding: clamp(20px, 4vw, 32px); border: 1px solid var(--border-subtle); border-radius: 22px; background: var(--bg-surface-solid); box-shadow: var(--studio-shadow-2); }
.shortcuts-guide-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; }
.shortcuts-guide-head h2 { margin: 8px 0 0; font-size: clamp(1.35rem, 4vw, 1.8rem); }
.shortcuts-guide-head button { width: 36px; height: 36px; border: 1px solid var(--border-subtle); border-radius: 50%; background: transparent; color: var(--text-primary); font-size: 1.3rem; cursor: pointer; }
.shortcuts-guide-card > p { margin: 16px 0 20px; color: var(--text-muted); line-height: 1.5; }
.shortcuts-guide-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.shortcuts-guide-grid > div { display: flex; align-items: center; gap: 10px; min-height: 48px; padding: 9px 10px; border: 1px solid var(--border-subtle); border-radius: 12px; background: var(--bg-surface-raised); color: var(--text-secondary); font-size: .8rem; }
.shortcuts-guide-grid kbd { min-width: 58px; padding: 4px 6px; border: 1px solid var(--border-strong, var(--border-subtle)); border-bottom-width: 2px; border-radius: 7px; background: var(--bg-surface-solid); color: var(--text-primary); font-size: .72rem; font-weight: 850; text-align: center; }

.nav-tab-btn { position: relative; }

/* Settings: editorial sections instead of a dashboard of competing cards. */
.settings-view-wrapper { max-width: 1080px; }

.settings-header-banner {
  padding: clamp(20px, 4vw, 34px) !important;
  border-radius: var(--studio-radius-lg) !important;
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent-primary) 14%, var(--bg-surface-solid)), var(--bg-surface-solid)) !important;
  border-color: var(--border-subtle) !important;
  box-shadow: var(--studio-shadow-1) !important;
}

.settings-card-group {
  padding: 20px !important;
  border-radius: var(--studio-radius-md) !important;
  border-color: var(--border-subtle) !important;
  box-shadow: none !important;
}

.settings-group-title {
  color: var(--accent-primary) !important;
  font-size: .72rem !important;
  letter-spacing: .12em !important;
}

.settings-row-item {
  min-height: 58px;
  border-bottom: 1px solid var(--border-subtle);
}

.settings-row-item:last-child { border-bottom: 0; }

.settings-row-info strong { font-size: .9rem; }
.settings-row-info span { color: var(--text-muted); line-height: 1.4; }

.btn-settings-action,
.sel-settings-control {
  min-height: 40px;
  border-radius: 11px !important;
}

.btn-settings-danger { color: var(--status-danger, #ad3028) !important; }
.btn-settings-accent { color: var(--accent-primary) !important; border-color: var(--accent-primary) !important; }

/* Player and sheets */
.score-viewport {
  padding: clamp(10px, 2vw, 24px) clamp(10px, 3vw, 32px) 180px;
}

.lyrics-chords-container {
  width: min(100%, var(--studio-reading)) !important;
  margin: 0 auto !important;
  border-radius: var(--studio-radius-lg) !important;
  border: 1px solid var(--border-subtle) !important;
  box-shadow: var(--studio-shadow-1) !important;
}

.lyrics-header-main,
.song-meta-rhythm-strip {
  border-color: var(--border-subtle) !important;
}

.karaoke-audio-companion-panel,
.karaoke-lyrics {
  border-radius: var(--studio-radius-md) !important;
  border-color: var(--border-subtle) !important;
  background: var(--bg-surface-solid) !important;
  box-shadow: none !important;
}

.karaoke-audio-companion-panel input[type="range"] { accent-color: var(--accent-primary); }

/* Explicit feedback states shared by every module. */
.is-loading,
[aria-busy="true"] { cursor: progress; }

.status-success,
.state-success { color: var(--status-success, #19734e) !important; }

.state-error,
[role="alert"] { color: var(--status-danger, #ad3028); }

button:disabled,
input:disabled,
select:disabled { filter: saturate(.55); }

@media (min-width: 640px) {
  .tools-premium-list { grid-template-columns: repeat(2, minmax(0, 1fr)) !important; }
  .artist-song-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 900px) {
  .explore-view,
  .tools-view-wrapper,
  .settings-view-wrapper { width: min(calc(100% - 64px), var(--studio-content)); }

  .tools-premium-list { grid-template-columns: repeat(3, minmax(0, 1fr)) !important; }
  .artist-song-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .discovery-workspace { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(300px, .6fr); gap: 22px; align-items: start; }
  .discovery-detail-panel { position: sticky; top: 20px; }
}

@media (min-width: 1200px) {
  .tools-premium-list { grid-template-columns: repeat(4, minmax(0, 1fr)) !important; }
}

@media (max-width: 639px) {
  .discovery-brand-row { flex-direction: column; gap: 12px; }
  .catalog-status { align-self: flex-start; }
  .discovery-search-row { flex-direction: column; }
  .discovery-search-row .btn-genre-filter-toggle { width: 100%; max-width: none; }
  .settings-row-item { align-items: center !important; }
  .settings-row-item .sel-settings-control,
  .settings-row-item .btn-settings-action { min-width: 0 !important; max-width: 46vw !important; }
  .bottom-nav-bar, .bottom-player-bar { height: 74px; }
  .lyrics-header-tools-group .tool-font { display: flex !important; }
  .tool-font .font-scale-text { min-width: 34px; }
  .practice-hub-empty { display: block; }
  .practice-hub-steps { margin-top: 16px; }
  .practice-hub-heading { display: block; }
  .practice-hub-save { display: inline-block; margin-top: 8px; }
  .practice-hub-grid { grid-template-columns: 1fr; }
  .explore-trending-list { grid-template-columns: 1fr; }
  .tools-command-bar { display: block; margin-top: -12px; }
  .tools-search-field { width: 100%; }
  .tools-search-summary { display: block; margin-top: 8px; }
  .tool-preview-action { width: 100%; }
  .karaoke-video-block iframe { max-height: 180px; }
  .karaoke-mixer { grid-template-columns: 1fr !important; }
  .shortcuts-guide-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
}

/* Companion de vídeo y metrónomo contextual */
.youtube-companion{max-width:520px;margin:0 0 var(--studio-space-4);border:1px solid var(--studio-border);border-radius:var(--studio-radius-lg);background:var(--studio-surface-raised);box-shadow:var(--studio-shadow-2);overflow:hidden}
.youtube-companion.is-open{position:fixed;inset:clamp(12px,5vh,48px) clamp(12px,5vw,72px);z-index:2200;width:min(520px,calc(100vw - 24px));max-height:calc(100vh - 24px);margin:auto;overflow:auto;box-shadow:0 24px 80px rgba(0,0,0,.45)}
.youtube-companion[hidden],.song-metronome-overlay[hidden]{display:none!important}
.youtube-companion-header{display:flex;align-items:center;justify-content:space-between;padding:var(--studio-space-3) var(--studio-space-4);background:var(--studio-surface-soft);border-bottom:1px solid var(--studio-border)}
.youtube-companion-header div{display:grid;gap:2px}.youtube-companion-header span{font-size:.78rem;color:var(--studio-text-muted)}
.youtube-companion-header button{width:32px;height:32px;border:0;border-radius:999px;background:transparent;color:var(--studio-text-muted);font-size:1.5rem;cursor:pointer}.youtube-companion-header button:hover{background:var(--studio-surface-hover);color:var(--studio-text)}
.youtube-companion-form{display:grid;gap:var(--studio-space-2);padding:var(--studio-space-4);background:var(--studio-surface-soft)}
.youtube-companion-form label{font-weight:700;font-size:.85rem}.youtube-companion-form-row{display:flex;gap:var(--studio-space-2)}.youtube-companion-form input{min-width:0;flex:1;border:1px solid var(--studio-border-strong);border-radius:var(--studio-radius-md);padding:.7rem .8rem;background:var(--studio-surface);color:var(--studio-text)}
.youtube-companion-form input[aria-invalid="true"]{border-color:var(--studio-danger)}.youtube-companion-form p{margin:0;min-height:1.2em;color:var(--studio-text-muted);font-size:.8rem}.youtube-companion-form p:not(:empty){color:var(--studio-success)}
.youtube-companion-form button[type=submit],.youtube-companion-trigger{border:0;border-radius:var(--studio-radius-md);padding:.7rem 1rem;background:var(--studio-accent);color:#fff;font-weight:800;cursor:pointer}.youtube-companion-trigger{position:relative;z-index:12;margin-bottom:var(--studio-space-4);background:var(--studio-surface-soft);color:var(--studio-text);border:1px solid var(--studio-border)}
.youtube-companion .youtube-pip-container{margin:0;border-radius:0;overflow:hidden;box-shadow:none;max-width:none}.youtube-companion-empty{padding:var(--studio-space-4);color:var(--studio-text-muted);font-size:.88rem}.btn-link-subtle{justify-self:start;border:0;background:none;color:var(--studio-accent);padding:0;cursor:pointer;font-weight:700}
.studio-modal-overlay{position:fixed;inset:0;z-index:2200;display:grid;place-items:center;padding:var(--studio-space-4);background:rgba(9,12,20,.72);backdrop-filter:blur(10px)}
.studio-modal-card{position:relative;width:min(100%,520px);padding:clamp(1.25rem,4vw,2rem);border:1px solid var(--studio-border-strong);border-radius:var(--studio-radius-xl);background:var(--studio-surface-raised);color:var(--studio-text);box-shadow:0 24px 80px rgba(0,0,0,.35)}
.studio-modal-close{position:absolute;right:1rem;top:1rem;width:36px;height:36px;border:1px solid var(--studio-border);border-radius:999px;background:var(--studio-surface-soft);color:var(--studio-text);font-size:1.4rem;cursor:pointer}.song-metro-display{display:flex;align-items:baseline;gap:.5rem;margin:1.5rem 0 1rem}.song-metro-display strong{font-size:clamp(3rem,12vw,5rem);line-height:.9}.song-metro-display span:first-child{margin-right:auto;color:var(--studio-text-muted);font-size:.85rem}.song-metro-stepper{display:flex;align-items:center;gap:.75rem}.song-metro-stepper input{flex:1;accent-color:var(--studio-accent)}.song-metro-stepper button{width:40px;height:40px;border:1px solid var(--studio-border);border-radius:999px;background:var(--studio-surface-soft);color:var(--studio-text);font-size:1.3rem;cursor:pointer}.song-metro-options{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem;margin-top:1.25rem}.song-metro-label{width:100%;font-size:.8rem;color:var(--studio-text-muted)}.metro-option{border:1px solid var(--studio-border);border-radius:999px;padding:.55rem .8rem;background:var(--studio-surface-soft);color:var(--studio-text);cursor:pointer}.metro-option.active{border-color:var(--studio-accent);background:var(--studio-accent-soft);color:var(--studio-accent-strong)}.studio-modal-main-action{width:100%;margin-top:1.5rem}
@media(max-width:560px){.youtube-companion-form-row{flex-direction:column}.youtube-companion-form button[type=submit]{width:100%}.studio-modal-overlay{padding:.75rem}}

/* En móvil el metrónomo sigue siendo una acción principal y el botón de
   salida del atril permanece siempre al alcance, aunque el HUD tenga más
   controles que el ancho disponible. */
#btnSongTopMetronome,#btnQuickRecordAction{display:flex!important}
#btnToggleYouTube { position: static; margin-block: 0 24px; }

/* Studio composition: content first, consistent surfaces, one primary action. */
.discovery-header {
  width: 100%;
  padding: 0 0 24px;
  border: 0;
  border-bottom: 1px solid var(--border-subtle);
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}
.discovery-brand-row { width: 100%; }
.explore-hero-title { font-size: clamp(1.9rem, 4vw, 3.25rem); }
.discovery-search-row { width: 100%; margin-top: 24px; }
.explore-search-box { flex: 1; min-width: 0; }
.explore-search-input { width: 100%; padding-left: 48px; box-shadow: none; }
.explore-mode-chip-bar { justify-content: flex-start !important; margin-bottom: 0; }
.practice-hub { width: 100%; box-shadow: none; }
.practice-hub-empty {
  margin-top: 16px;
  padding: 12px 0;
  border: 0;
  background: transparent;
}
.practice-hub-empty h2 { font-size: 1rem; }
.practice-hub-empty p { font-size: .83rem; margin-top: 4px; }
.practice-hub-empty .practice-hub-kicker { display: none; }
.practice-hub-steps { flex-wrap: nowrap; }
.practice-hub-steps span { padding: 6px 9px; border: 0; }
.practice-hub-steps b,
.explore-mode-chip.active { color: var(--studio-on-accent); }
.explore-trending-accordion { background: var(--bg-surface-solid); margin-block: 12px 20px; }
.trending-kicker { display: none; }
.explore-trending-accordion summary { padding: 12px 16px; min-height: 48px; }
.discovery-workspace { gap: 32px; }
.discovery-detail-panel { padding-left: 24px; }
.discovery-song-card { border-radius: 12px !important; }
.song-card-main { text-align: left; padding: 18px 20px; min-height: 100px; }
.song-card-main > span:last-child { font-size: .78rem; color: var(--accent-primary); font-weight: 700; }
.studio-eyebrow { color: var(--accent-primary); font-size: .65rem; letter-spacing: .12em; font-weight: 800; }

.lyrics-chords-container:not(.stage-mode-view) {
  width: min(calc(100% - 32px), 1080px) !important;
  margin-inline: auto;
  border: 0 !important;
  box-shadow: none !important;
  background: var(--bg-surface-solid) !important;
}
.lyrics-chords-container[class*="theme-"] { color: var(--text-primary) !important; }
.lyrics-chords-container[class*="theme-"] .lyrics-word { color: var(--text-primary) !important; }
.lyrics-nav-tools-row { align-items: flex-start; gap: 16px; }
.lyrics-header-tools-group { flex-wrap: wrap; min-width: 0; gap: 6px; }
.quick-tool-pill, .btn-back-to-explore { min-height: 44px; box-shadow: none !important; }
.lyrics-header-main { border-bottom: 1px solid var(--border-subtle); }
.lyrics-chords-container .lyrics-song-title { color: var(--text-primary) !important; letter-spacing: -.035em; }
.lyrics-chords-container .lyrics-song-artist { color: var(--text-secondary) !important; }
.lyrics-chords-container .chord-badge {
  color: var(--accent-primary) !important; background: var(--bg-surface-hover) !important;
  border-color: var(--border-subtle) !important; box-shadow: none !important;
}
.lyrics-chords-container .toggle-slider-thumb { background: var(--accent-primary); box-shadow: var(--studio-shadow-1); }
.lyrics-chords-container .ui-toggle-switch:hover { border-color: var(--accent-primary); }
.lyrics-chords-container .ui-toggle-switch.is-play .opt-play,
.lyrics-chords-container .ui-toggle-switch.is-sing .opt-sing { color: var(--studio-on-accent) !important; text-shadow: none; }
.lyrics-chords-container .hero-sing-indicator { background: var(--bg-surface-hover); border-color: var(--border-subtle); color: var(--accent-primary); }
.karaoke-heading { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.karaoke-heading h2 { margin: 4px 0 8px; font-size: clamp(1.3rem, 3vw, 1.75rem); letter-spacing: -.035em; }
.karaoke-heading p { margin: 0; font-size: .83rem; color: var(--text-secondary); }
.sing-floating-hud {
  position: fixed; z-index: 2000; bottom: max(16px, env(safe-area-inset-bottom));
  left: 50%; transform: translateX(-50%); display: flex; align-items: center;
  gap: 8px; padding: 8px 12px; border: 1px solid var(--border-strong);
  border-radius: 48px; background: var(--bg-surface-solid); box-shadow: var(--studio-shadow-2);
  max-width: calc(100vw - 24px);
}
.sing-floating-hud button {
  display: grid; place-items: center; flex: 0 0 44px; width: 44px; height: 44px;
  border: 0; border-radius: 50%; background: var(--bg-surface-raised); color: var(--text-primary); cursor: pointer;
}
.sing-floating-hud button[aria-pressed="true"] { color: var(--accent-primary); background: var(--bg-surface-hover); }
.sing-floating-hud #btnSingPlayPause { flex-basis: 56px; height: 56px; width: 56px; background: var(--accent-primary); color: var(--studio-on-accent); font-size: 1.4rem; }
.sing-floating-hud > div { max-width: 48px; }
.sing-meter-label { font-size: .6rem; color: var(--text-secondary); font-weight: 650; margin-bottom: 4px; }
.lyrics-chords-container.stage-mode-view { width: 100% !important; max-width: none !important; border: 0 !important; border-radius: 0 !important; }
.stage-mode-view .lyrics-header-main,
.stage-mode-view .song-meta-rhythm-strip,
.stage-mode-view #btnToggleYouTube { display: none !important; }
.stage-mode-view #lyricsBodyContent { max-width: var(--studio-reading); margin: 0 auto; padding-bottom: 180px; }
.stage-floating-hud button { min-height: 44px; padding: 8px 12px; border-radius: 12px; border: 1px solid var(--border-subtle); background: var(--bg-surface-solid); color: var(--text-primary); }
.stage-floating-hud button.active { background: var(--accent-primary); color: var(--studio-on-accent); }
.singer-pitch-lane-wrapper { height: clamp(220px, 30vh, 340px) !important; box-shadow: none !important; }
.sing-stage-workspace { display: flex; flex-direction: column; gap: 8px; width: 100%; margin-top: 4px; }
.karaoke-audio-companion-panel { padding: clamp(14px, 2.5vw, 22px) !important; margin-top: 8px; }
.karaoke-primary-bar {
  display: grid; grid-template-columns: minmax(160px, 1fr) minmax(200px, 1.4fr) auto;
  gap: 14px; align-items: center;
}
.karaoke-status-block { display: flex; flex-direction: column; gap: 2px; }
.karaoke-backing-status-text { margin: 0; font-size: .83rem; font-weight: 650; color: var(--text-secondary); }
.karaoke-quick-actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; justify-content: flex-end; }
.karaoke-comfort-pill {
  display: inline-flex; align-items: center; gap: 6px; padding: 8px 12px; min-height: 44px;
  border-radius: var(--studio-radius-sm); font: inherit; font-size: .83rem; font-weight: 700;
  background: var(--bg-surface-raised); border: 1px solid var(--border-strong); color: var(--text-primary); cursor: pointer;
}
.karaoke-comfort-pill.active,
.karaoke-comfort-pill[aria-pressed="true"] { border-color: var(--accent-primary); color: var(--accent-primary); background: var(--bg-surface-hover); }
.karaoke-secondary-drawer { margin-top: 12px; border-top: 1px solid var(--border-subtle); padding-top: 8px; }
.karaoke-drawer-summary {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  cursor: pointer; padding: 8px 4px; font-size: .85rem; font-weight: 700; color: var(--text-secondary); min-height: 44px; user-select: none;
}
.karaoke-drawer-summary:hover { color: var(--text-primary); }
.karaoke-drawer-sub { font-size: .78rem; font-weight: 500; color: var(--text-secondary); opacity: .85; }
.karaoke-drawer-content {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px; margin-top: 10px; padding-top: 4px;
}
.karaoke-card-group {
  display: flex; flex-direction: column; gap: 8px; padding: 12px 14px;
  background: var(--bg-surface-raised); border: 1px solid var(--border-subtle); border-radius: var(--studio-radius-sm);
}
.karaoke-group-label { font-size: .72rem; text-transform: uppercase; letter-spacing: .06em; font-weight: 800; color: var(--text-secondary); }
.karaoke-actions-inline { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.karaoke-audio-companion-panel button {
  min-height: 44px;
  border-radius: var(--studio-radius-sm);
  padding: 10px 14px;
  border: 1px solid var(--border-strong);
  background: var(--bg-surface-solid);
  color: var(--text-primary);
  font: inherit;
  font-size: .85rem;
  font-weight: 650;
  cursor: pointer;
}
.karaoke-audio-companion-panel input[type="number"] {
  width: 100%; min-height: 44px; padding: 10px 12px;
  border: 1px solid var(--border-strong); border-radius: var(--studio-radius-sm);
  background: var(--bg-surface-solid); color: var(--text-primary); font: inherit;
}
.karaoke-source-switch { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 4px; }
.karaoke-source-switch label {
  display: flex; align-items: center; gap: 8px; padding: 10px 14px; min-height: 44px;
  border: 1px solid var(--border-subtle); border-radius: var(--studio-radius-sm);
  font-size: .85rem; cursor: pointer;
}
.karaoke-source-switch label:has(:checked) { border-color: var(--accent-primary); background: var(--bg-surface-hover); }
.karaoke-source-switch input { accent-color: var(--accent-primary); }
.karaoke-mixer { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 12px; align-items: end; }
.karaoke-mixer label { display: grid; gap: 6px; font-size: .8rem; color: var(--text-secondary); }
.karaoke-mixer #btnRemoveKaraokeBacking { grid-column: 1 / -1; justify-self: start; color: var(--studio-danger); }
.karaoke-timeline { display: grid; gap: 4px; margin-block: 0; }
.karaoke-timeline output { font: 650 .83rem ui-monospace, monospace; color: var(--text-secondary); }
.karaoke-audio-companion-panel input[type="range"] { width: 100%; min-height: 36px; }
.karaoke-mic-row { display: inline-flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.karaoke-mic-row span { font-size: .83rem; }
.karaoke-source-note, .karaoke-lyrics-import p { font-size: .8rem; line-height: 1.5; color: var(--text-secondary); margin: 0; }
.karaoke-lyrics-import { display: flex; flex-direction: column; gap: 8px; }
.karaoke-lyrics { padding: 16px 12px; text-align: center; }
#karaokeCurrentLine { font-size: clamp(1.25rem, 3vw, 2rem); font-weight: 750; letter-spacing: -.025em; min-height: 1.4em; margin: 0; }
#karaokeNextLine { color: var(--text-secondary); font-size: .95rem; margin: 4px 0 0 0; }
@media (max-width: 768px) {
  .karaoke-primary-bar { grid-template-columns: 1fr; gap: 10px; }
  .karaoke-quick-actions { justify-content: flex-start; }
}
.youtube-reference-note { margin: 0; padding: 12px 16px; font-size: .8rem; color: var(--text-secondary); background: var(--bg-card-subtle); }
.youtube-companion-form button[type="submit"], .studio-modal-main-action { color: var(--studio-on-accent); }
.studio-modal-card { max-height: calc(100dvh - 32px); overflow-y: auto; }
.studio-modal-card h2 { padding-right: 24px; font-size: 1.5rem; letter-spacing: -.03em; }
.studio-modal-card .eyebrow { color: var(--accent-primary); font-size: .7rem; letter-spacing: .1em; text-transform: uppercase; }
.studio-modal-close, .song-metro-stepper button { min-width: 44px; min-height: 44px; }
.scorecard-reference-note { color: var(--text-secondary); font-size: .8rem; line-height: 1.6; margin: 0 0 20px; }
.premium-list-item [data-preview-action="open-full"] { display: inline-flex !important; }
.tool-badge-pro, .tool-badge-dsp { display: none !important; }

@media (hover: none) {
  button:hover:not(:disabled), .song-card:hover, .premium-list-item:hover, .tool-card:hover { transform: none; }
}
@media (max-width: 680px) {
  .explore-view, .tools-view-wrapper, .settings-view-wrapper { width: calc(100% - 32px); padding-inline: 0; padding-top: 24px; }
  .discovery-brand-row { gap: 10px; }
  .catalog-status { padding: 0; border: 0; background: none; font-size: .7rem; }
  .explore-hero-title { margin-top: 6px; }
  .discovery-search-row { margin-top: 20px; gap: 8px; }
  .explore-search-input { min-height: 52px; font-size: 16px; }
  .discovery-search-row .btn-genre-filter-toggle { min-height: 44px; }
  .explore-mode-chip-bar { margin-top: 12px; }
  .discovery-header { padding-bottom: 16px; }
  .practice-hub-empty { padding: 4px 0; margin-top: 12px; }
  .practice-hub-empty p { max-width: none; }
  .practice-hub-steps { display: none; }
  .trending-summary-hint { display: none; }
  .explore-songs-section { margin-top: 16px; }
  .discovery-detail-panel { display: none; }
  .lyrics-chords-container:not(.stage-mode-view) { width: 100% !important; border-radius: 0 !important; padding-inline: 16px !important; }
  .lyrics-chords-container .lyrics-nav-tools-row { flex-wrap: wrap !important; }
  .lyrics-chords-container .lyrics-header-tools-group { flex-wrap: wrap !important; width: 100%; justify-content: flex-start; }
  .stage-floating-hud { display: flex !important; flex-wrap: wrap; gap: 8px; max-width: calc(100vw - 24px); padding: 12px !important; }
  .stage-floating-hud .btn-stage-exit { position: static; flex: 1 0 100%; }
  .karaoke-mixer { grid-template-columns: repeat(2, minmax(0, 1fr)) !important; }
  .karaoke-mixer label:first-child { grid-column: 1 / -1; }
  .karaoke-heading > button { width: 100%; }
  .karaoke-source-switch label { flex: 1; }
}

@media print {
  #btnToggleYouTube, .youtube-companion, .karaoke-audio-companion-panel, .stage-floating-hud { display: none !important; }
}

.catalog-audit-panel { margin-block: 12px 20px; border-block: 1px solid var(--border-subtle); color: var(--text-secondary); }
.catalog-audit-panel summary { min-height: 44px; padding: 12px 0; cursor: pointer; font-weight: 650; color: var(--text-primary); }
.catalog-audit-panel summary span { font-weight: 400; margin-left: 8px; font-size: .8rem; color: var(--text-secondary); }
.catalog-audit-panel p { font-size: .85rem; line-height: 1.6; margin-bottom: 12px; max-width: 80ch; }
.catalog-audit-panel > button { margin-bottom: 16px; min-height: 44px; }
.catalog-quality-filter { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; font-size: .8rem; color: var(--text-secondary); }
.catalog-quality-filter select { min-height: 44px; max-width: 100%; border: 1px solid var(--border-subtle); border-radius: 10px; background: var(--bg-surface-solid); color: var(--text-primary); padding-inline: 12px; }
.discovery-results-heading { flex-wrap: wrap; gap: 12px; }
.song-quality-label { display: block; font-size: .75rem; line-height: 1.5; margin-top: 8px; color: var(--text-secondary); font-weight: 450; }
.song-content-audit { display: grid; gap: 4px; margin: 12px 0 20px; padding-left: 14px; border-left: 3px solid var(--accent-primary); font-size: .8rem; line-height: 1.5; color: var(--text-secondary); }
.song-content-audit strong { color: var(--text-primary); }
.stage-mode-view .song-content-audit { display: none; }
@media (max-width: 680px) {
  .catalog-audit-panel summary span { display: block; margin: 4px 0 0; }
  .catalog-quality-filter { width: 100%; }
}